Spark stitch markers are made exclusively for Jimmy Beans Wool! The "Spot On" stitch markers represent the colors of the Jimmy Beans Wool color wheel, while "Color Spots" are made to go along with our limited edition Madelinetosh colorways! These snag-free stitch markers are designed to fit up to size US 7 needles and come attached to an elegant pear-shaped locking stitch marker, which will fit up to size US 10 needles. The Lock & Key stitch marker set includes 2 snag-free silver stitch markers and 10 pear-shaped locking stitch markers.